opik-evaluate SKILL.md skillA
opik-evaluate from comet-ml/opik-claude-code-plugin is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add comet-ml/opik-claude-code-plugin/opik-evaluate@git:20260921.9843278Pins git:20260921.9843278 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- comet-ml/opik-claude-code-plugin
- Path
skills/opik-evaluate/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260921.9843278, committed Sep 21, 2026
- First version recorded
- Sep 17, 2026
- Size
- 12,790 bytes
- Repository stars
- 25
- License
- Apache-2.0
Build an LLM evaluation and run it against the app, returning an Opik experiment with scores and its link. Picks a test suite with judge assertions or a dataset with metrics, sources cases from traces or synthetic data, scores heuristics-first then one-failure-mode judges, runs client-side via the SDK or server-side for prompt-only targets, and reads the scores back. Covers RAG evaluation, error analysis, writing and validating LLM judges against human labels, and auditing an existing eval…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Evaluate — Build an Evaluation and Run It
**Definition of done:** an **experiment in Opik with scores**, its **link**, and a **score summary** the user can act on — produced by running the user's app (or prompt) over a set of cases with scoring that targets real failure modes. If the evaluation can't be built or run, stop at the **first** genuine blocker and return **exactly one** next step. A dataset with no run, a judge prompt with no scores, or a plan in prose is not success.
Operate: **ground the cases in what actually goes wrong, score with code before judges, judge one failure mode at a time, run once end to end, read the scores back from Opik — and change no application code.** The only file this skill writes is a runner outside the repo.
## Inputs
The entry point is `/opik-evaluate` (evaluate the app in this repo), `/opik-evaluate <what>` ("the RAG answers", "the refund flow"), or `/opik-evaluate <dataset-or-suite>` (run against existing cases). Infer the rest; treat these as **optional overrides**:
…Read the whole file at its exact version.
How to install
mdr add comet-ml/opik-claude-code-plugin/opik-evaluate@sha256:439d11b53de301d0The line at the top of this page pins the label git:20260921.9843278, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qydlydwa7u3z3h4m)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 17, 2026 and Sep 21, 2026, about one every 4 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260921.9843278 latest | 2026-09-21 | 9843278 | 12,790 B | A | view · diff |
| git:20260917.109a551 | 2026-09-17 | 109a551 | 12,520 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12790 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
comet-ml/opik-claude-code-plugin · 25 stars · license Apache-2.0 · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qydlydwa7u3z3h4m GET https://markdownregistry.com/api/v1/resolve?ref=comet-ml/opik-claude-code-plugin/opik-evaluate GET https://markdownregistry.com/api/v1/blob/439d11b53de301d07607efc03a1b8a5ad66cdd21df563ddf6c8fd73ad65afbb5
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.